Another of these factors is infertility. Generally, female gorillas mature at 10â12 years of age (or earlier at 7â8 years) and their male counterparts mature more slowly, rarely strong and dominant enough to reproduce before 15â20 years of age.
A herniated disk, sometimes (incorrectly) called a slipped disk, is a common cause of severe back pain and sciatica. A disk in the lumbar area becomes herniated when it ruptures or thins out, and degenerates to the point that the gel within the disk (the nucleus pulposus) pushes outward.
Sciatica Symptoms. Low back pain that radiates to the hip, buttock, and down a lower extremity is the most common symptom of sciatica. Sometimes sciatica pain worsens with bending at the waist, coughing, sitting, or sneezing. Sciatica can also cause tingling, numbness, or weakness of the leg. Sciatica symptoms can occur rapidly and persist for weeks.